systems-design

Review API designs for best practices, consistency, and common issues. PROACTIVELY use when reviewing OpenAPI specs, API endpoints, or REST/GraphQL/gRPC designs.

PROACTIVELY use when estimating system capacity, calculating QPS/storage/bandwidth, or sizing infrastructure. Provides guided back-of-envelope calculations with step-by-step breakdowns.

PROACTIVELY use when designing chaos experiments, planning GameDays, or improving system resilience. Helps identify failure modes, design fault injection experiments, and validate resilience patterns like circuit breakers, retries, and bulkheads.

Design data pipelines, recommend data architecture patterns, and analyze data flow requirements. PROACTIVELY use when designing ETL/ELT pipelines, data lakes, or streaming architectures.

PROACTIVELY use when designing CDN strategies, edge deployment architectures, or optimizing global latency. Helps design content delivery, edge compute placement, multi-region deployment, and geographic routing strategies.

Use when designing APIs, choosing between REST/GraphQL/gRPC, or understanding API design best practices. Covers protocol selection, resource modeling, and API patterns.

Review API design for best practices, consistency, and common issues

Use when implementing API authentication, authorization, or security patterns. Covers OAuth 2.0, OIDC, JWT, API keys, rate limiting, and common API security vulnerabilities.

Use when planning API versioning strategy, handling breaking changes, or managing API deprecation. Covers URL, header, and query parameter versioning approaches.

Use when designing content delivery networks, caching strategies, or global content distribution. Covers CDN architecture, cache hierarchies, origin shielding, cache invalidation, and edge optimization.